1 files changed, 44 insertions, 0 deletions
diff --git a/dom/tests/mochitest/ajax/prototype/test/unit/position_test.js b/dom/tests/mochitest/ajax/prototype/test/unit/position_test.js
new file mode 100644
index 0000000000..5cea791b1f
--- /dev/null
+++ b/dom/tests/mochitest/ajax/prototype/test/unit/position_test.js
@@ -0,0 +1,44 @@
+var testVar = 'to be updated';
+
+new Test.Unit.Runner({
+  
+  setup: function() {
+    scrollTo(0,0);
+    Position.prepare();
+    Position.includeScrollOffsets = false;
+  },
+  
+  teardown: function() {
+    scrollTo(0,0);
+    Position.prepare();
+    Position.includeScrollOffsets = false;
+  },
+  
+  testPrepare: function() {
+    Position.prepare();
+    this.assertEqual(0, Position.deltaX);
+    this.assertEqual(0, Position.deltaY);
+    scrollTo(20,30);
+    Position.prepare();
+    this.assertEqual(20, Position.deltaX);
+    this.assertEqual(30, Position.deltaY);
+  },
+  
+  testWithin: function() {
+    [true, false].each(function(withScrollOffsets) {
+      Position.includeScrollOffsets = withScrollOffsets;
+      this.assert(!Position.within($('body_absolute'), 9, 9), 'outside left/top');
+      this.assert(Position.within($('body_absolute'), 10, 10), 'left/top corner');
+      this.assert(Position.within($('body_absolute'), 10, 19), 'left/bottom corner');
+      this.assert(!Position.within($('body_absolute'), 10, 20), 'outside bottom');
+    }, this);
+    
+    scrollTo(20,30);
+    Position.prepare();
+    Position.includeScrollOffsets = true;
+    this.assert(!Position.within($('body_absolute'), 9, 9), 'outside left/top');
+    this.assert(Position.within($('body_absolute'), 10, 10), 'left/top corner');
+    this.assert(Position.within($('body_absolute'), 10, 19), 'left/bottom corner');
+    this.assert(!Position.within($('body_absolute'), 10, 20), 'outside bottom');
+  }
+});
+\ No newline at end of file